/*
 * Copyright (c) 2010, Yawning <yawninglol at gmail.com>
 * All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions are met:
 *
 *   * Redistributions of source code must retain the above copyright
 *     notice, this list of conditions and the following disclaimer.
 *
 *   * Redistributions in binary form must reproduce the above copyright
 *     notice, this list of conditions and the following disclaimer in the
 *     documentation and/or other materials provided with the distribution.
 *
 *   * Neither the name of the Mew Developers nor the
 *     names of its contributors may be used to endorse or promote products
 *     derived from this software without specific prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
 * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE
 * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF
 * THE POSSIBILITY OF SUCH DAMAGE.
 */

package yawning.mew;

import yawning.mew.character.Toon;
import yawning.mew.target.Target;
import yawning.mew.sim.Simulation;
import yawning.mew.sim.SimulationManager;

/**
 * The glue that ties everything together.
 *
 * @author Yawning <yawninglol at gmail.com>
 */
public class Mew {
    private MewView mMewView;    // The view into the backend.
    private SimulationManager mSimEngine;

	@SuppressWarnings("serial")
	public class InvalidSimulationOrFormulation extends RuntimeException {
	}

	private static final String MEWCLASS = "Mew.Class";

    public Mew(MewView v) {
    	mMewView = v;
    }

    public Report compute(Toon toon, Target target, PropertiesBase config) {
    	try {
    		Class<?> c = Class.forName(config.getProperties().getProperty(MEWCLASS));
    		if (Formulation.class.isAssignableFrom(c)) {
    			Formulation f = (Formulation)c.newInstance();
    			return f.calculate(toon, target, config, mMewView);
    		}
    		if (Simulation.class.isAssignableFrom(c)) {
    			Simulation sim = (Simulation)c.newInstance();
    			if (mSimEngine == null) mSimEngine = new SimulationManager(mMewView);
    			return mSimEngine.simulate(toon, target, config, sim);
    		}
    		throw new InvalidSimulationOrFormulation();
    	}
    	catch (Exception e) {
    		throw new RuntimeException(e);
    	}
    }

    public void abort() {
    	if (mSimEngine != null) mSimEngine.abort();
    }
}
